baber/WOPTO huggingface dataset:
Patent GB-1170923-A (GB)
Title: Improvements in or relating to Magnetic Core Devices.
Inventor: RODGERS GERALD PATRICK
IPC: G11C17/02
Filed: 1965-09-20
Abstract: 1,170,923. Magnetic storage apparatus. PLESSEY CO. Ltd. 20 Dec., 1966 [20 Sept., 1965], No. 40094/65. Heading H3B. Each magnetic storage element 6 of a memory matrix is coupled by a closed conductive loop to a respective transformer core formed by separable portions 1a 16, each conductive loop comprising a wire 4 bridging an aperture 2 in a conductive sheet 3 in which the associated transformer core is accommodated. The storage element 6 may consist either of an annular core of rectangular hysteresis material threaded by the wire 4 or a surface coating of such material on the wire. The conductive sheet 3 may be a copper-clad plastics laminate with a regular pattern of apertures for the storage elements and associated transformer cores of the matrix. The wire 4 bridging an aperture is secured to the conductive sheet by solder 5. Each transformer is threaded by at least a set winding 7, a reset winding 8 and a sense winding 9, with windings 8 and 9 on opposite sides of the sheet. These windings may be in the form of flexible printed wiring planes.
Patent GB-1305370-A (GB)
IPC: C12C1/047
Filed: 1971-08-26
Abstract: 1305370 Malting KURTH MALTING CORP 26 Aug 1971 [21 Sept 1970] 40107/71 Heading C6E In a process of malting in which a cereal grain (barley) is steeped, germinated and dried by kilning, (1) a sulphite, bisulphite or metablsulphite salt or mixture thereof so added to the grain after steep-out and before significant kilning of the germinated grain has occurred, and (2) an acidic substance, defined as one which, in the presence of moisture, reacts with the sulphite, bisulphite or metabisulphite salt to form the sulphite ion, is added to the grain after at least one day of germination and after significant rootlet growth has occurred. The additions amounting to between 500 and 8, 000 ppm of each based on the dry weight of the grain, may be made in granular form or as aqueous solutions. The acidic substance is typically added at least 4 hours after the sulphite &c. salt, though the two may be introduced in either order or contemporaneously. Sulphite &c. salts: sodium, potassium, calcium or magnesium sulphite, bisulphite or metabisulphite. Acidic substances mentioned: sulphuric, phosphoric, hydrochloric, nitric, acetic, citric, lactic, malic, tartaric and mono- or trichloroacetic acids, sodium or potassium acid sulphate, sodium dihydrogen phosphate, mono-sodium acid citrate and potassium bitartrate. The green malt may be treated with limewater with the object of curtailing the amounts of sulphite or sulphate ions in worts made from the malt.
Patent GB-1125882-A (GB)
Title: Improvements in a delayed and sustained release type pharmaceutical preparation
Inventor: SHEPARD MARK
IPC: C08F218/08
Filed: 1965-09-21
Abstract: 1,125,882. Sustained release pharmaceutical compositions. KEY PHARMACEUTICALS, Inc. 21 Sept., 1965, No. 40122/65. Heading A5B. A sustained release pharmaceutical composition comprises one or more medicaments adsorbed on colloidal magnesium aluminium silicate particles, some of the particles having one or more medicaments adsorbed thereon being provided with an enteric and/or retardant coating. The enteric coasting may comprise lac, zein, or cellulose acetate phthalate and the retardant coating may consist of a mixture of a glyceride, beeswax, and at least one fatty alcohol. The medicaments may be herbs, antihistamines, antibiotics, autonomics, cardiovascular agents, central nervous system depressants and stimulants, enzymes, gastrointestinal agents, haematolagical and immunological agents, hormones, renal acting and oldemia reducing agents, skeletal muscle relaxants, and nutrients, specified medicaments being lupulin, terpin hydrate, aspidium, benzoin, tolu, capsicum, nitroglycerine, dihydrocodeine bitartrate, pyrilamine maleate, ergotamine, mephenesin, acetaminophen, scopolamine, belladonna extract, and penicillin. The particles may be tabletted or encapsulated.
Patent GB-1355402-A (GB)
Title: Polyimide compositions
IPC: C08L79/08
Filed: 1971-08-26
Abstract: 1355402 Glass fibre laminates RHONEPOULENC SA 26 Aug 1971 [27 Aug 1970 24 June 1971] 40136/71 Heading B5N [Also in Division C3] A thermosetting composition comprises (a) an imide prepolymer obtained by reacting (i) an unsaturated bis-imide wherein D is a divalent organic radical containing a carbon-carbon double bond and A is a divalent organic radical containing at least 2 carbon atoms, with (ii) a polyamine R(NH 2 ) x  where R is an x-valent organic radical and x is at least 2 in proportions of 0À55 to 25 mols (i) per molar -NH 2  group of (ii), and (b) a polycondensation polyester of a polycarboxylic acid and a polyol at least one of which is olefinically unsaturated. Numerous reactants for both (a) and (b) are specified. The composition may also include a liquid comonomer for (b), several being specified, and an aromatic compound having 2 to 4 benzene rings as described in Specification 1,260,819. Uses.-The composition can be cured at 100 to 280 C. In solution they can be used to prepare adhesives or laminates. Examples 5 to 9 illustrate the use of the compositions to prepare laminate from gamma-aminopropyltriethoxysilane-treated glass fibre fabric. Reference is made to Specifications 1,355,401, 1,355,403, 1,190,718 and 1,137,592.
Patent GB-1485033-A (GB)
Title: High rigidity fluid bearing and method for manufacturing the same
IPC: F16C39/04
Filed: 1974-09-16
Abstract: 1485033 Bearings TOYODA-KOKI KK 16 Sept 1974 [30 Oct 1973] 40291/74 Heading F2A A bearing bush has a plurality of circumferentially spaced fluid pockets 8 surrounded by land portions 7 and throttle means 16 supplying pressure fluid to the pockets, a plurality of raised lands 9 protrude towards a shaft carried by the bearing and by virtue of slots 14a, 14b producing an area of increased flexibility 17c, 17d are resiliently held against the shaft to form a wedge-shaped clearance. The projecting parts of the lands 9 may be produced by radial inward distortion by bolts 22, Figs. 4 and 5 (not shown) through holes 10 into an undersize mandrel and turning the outside diameter of the bush 2 to a circular section and then removing the bolts. On assembly into a housing, external projections are pressed inwards to raise the internally projecting portions of the lands 9.
Patent GB-1193738-A (GB)
Title: Anti-Backlash Universal Joint
IPC: F16D3/26
Filed: 1968-08-23
Abstract: 1,193,738. Universal joints. BORG-WAR. NER CORP. 23 Aug., 1968 [14 Sept., 1967], No. 40398/68. Heading F2U. A universal joint with means for compensating for wear of the rubbing surfaces comprises a tang 13 on one shaft received in a slot 35 having walls 33, 34 diverging towards a face 36 in a bushing 17 which is received in a cylindrical socket 14 provided on the other shaft. A wedge block 18 is mounted in the slot 35 and a spring 19 between the block and the base 36 of the slot urges the bushing against the socket and urges the tang against the wall 33 of the slot. The parts of the bushing adjacent the confluence of the side walls and base of the slot are relatively thin and provide some flexibility facilitating expanding of the bushing into snug engagement with the socket. The bushing and wedge block are preferably formed of selflubricating plastics material, such as a polyamide filled with carbon black. Other plastics are also suggested.
Patent GB-1482355-A (GB)
Title: Amorphous precipitated siliceous pigments and process for producing such pigments
IPC: A61K8/00
Filed: 1974-09-17
Abstract: 1482355 Dentifrices containing a silicic acid pigment J M HUBER CORP 17 Sept 1974 [3 Oct 1973] 40414/74 Heading A5B [Also in Division Cl] An oral dentifrice composition contains a polishing and abrasive ingredient comprising an amorphous, precipitated silicic acid pigment having BET surface area 30-340 m<SP>2</SP>/g, wet cake moisture less than 75%, high abrasiveness with a valley abrasion wave loss of 10-168 mg, a pack density above 25 lbs per Cu ft and a low oil absorption of less than 110 cc/100 g. The pigment is made by the method claimed (see Division C1). Products having particular particle size distributions, are exemplified.
Patent GB-1111259-A (GB)
Title: O-alkyl-s-unsaturated aliphatic hydrocarbyl phosphoroamidothioates
Inventor: MAGEE PHILIP S
IPC: C07F9/24
Filed: 1966-09-09
Abstract: Novel phosphoroamidothioates of the formula (RS)(R1O)P(O)NHR11, wherein R is a monovalent unsaturated aliphatic hydrocarbyl group having at least 3 carbon atoms, R1 is a C1-C6 alkyl group and R11 is hydrogen or a C1-C6 alkyl group are obtained by reacting an appropriate O,O-dialkyl chlorophosphorothionate with ammonia or an appropriate primary C1-C6 alkylamine and then heating the product, e.g. at 20 DEG  to 80 DEG  C. in the presence of an unsaturated acyclic hydrocarbon halide having 3 to 6 carbon atoms and wherein the halogen is of atomic number 17 to 53.  It is preferred to use an excess of the hydrocarbon halide reactant and the amination step is preferably carried out in an inert diluent e.g. an aromatic or paraffinic solvent, the diluent being normally removed prior to the addition of the hydrocarbon halide.  The group R may contain one or more ethylenic and/or acetylenic sites of unsaturation. The products have insecticidal properties (see Division A5).ALSO:An insecticidal composition comprises a solid or liquid carrier and a phosphoroamidothioate of the general formula (RS) (R\svO)P(O) NHR\yF wherein R is a monovalent unsaturated aliphatic hydrocarbyl group having at least 3 carbon atoms, R\sv is a C1-C6 alkyl group and R\sv is hydrogen or a C1-C6 alkyl group.  The group R may contain one or more ethylenic and/or acetylenic bonds.  Wetting and dispersing agents may be present and the solid carrier may be in the form of powder, granules, or dust, while specified liquid carriers are alkanes, aromatic hydrocarbons and acetone.  The active ingredient has systemic properties and may be mixed with other active toxicants.
Patent GB-1478541-A (GB)
Title: Electromagnetic drive element and printing head for dot-matrix printer
IPC: B41J2/275
Filed: 1974-09-17
Abstract: 1478541 Electromagnets TELE SPEED COMMUNICATIONS Inc 17 Sept 1974 [17 Oct 1973 25 Oct 1973] 40517/74 Heading H1P A dot-matrix printing head 10 (Fig. 1) comprising a circular array of electromagnets disposed round the central axis of the printed character is mounted on upper and lower carriage bearing shafts 12, 14 on a base having legs embracing shaft 12 with clamps 22 for timing belt 24 driven to traverse the head 10 along the shaft. Baseplate 26 of the head supports the print mechanism and is integral with the legs with an upwardly extending bridge 28 carrying a wire bearing transition plate 30, a bridge 32 with ribbon guides, and an adjustable aperture wire collector bearing plate 34. A boss 36 of baseplate 26 mounts inner and outer electromagnet array plates 38, 40. Plural electromagnets 52 are radially spaced and bracketed on the plates 38, 40 round the periphery of the base thereof, and magnets each have an I core mounted at an angle to the printing axis. Magnet 52 (Figs. 4, 5) comprises magnetizable core 60 with integral poles 54, 62 on one of which a leaf spring 64 is slot mounted and screw secured to carry a shoe 67 and a magnetizable gapped armature 66; the shoe carrying a printing wire 68 and the magnet being energized by winding 70. The spring is of steel or beryllium copper, and the armature 66 is undercut to enable it to move freely ; being at the same time screwed to the free end of the spring so that its inner end extends into recess 80 of the pole 54. Surface 88 of pole 92 is spaced from the secured end of the shunt and on energization the spring 64 is deflectable so that gap 90 is closed and the surfaces of the shunt and the pole are in contact. The magnet assembly is mounted at an angle to the centreline of the printed character, and the shoe 67 is rigid to carry print wire 68 of e.g. electropolished tungsten which extends to the printing medium to contact the latter on energization. The impact force increases as gap 90 closes.  The print wires of the several magnetic assemblies extend through discrete guide apertures of transition plate 30 and through a common rectangular guide aperture of bearing plate 34 adjacent the printing face defined by platen 104 cooperating with paper guides 102.
Patent GB-1080911-A (GB)
Title: Air discharge device for pneumatic centrifugal separators
Inventor: ROWELL LORNE ARCHIBALD
IPC: B04C1/00
Filed: 1963-10-15
Abstract: 1.080,911. Centrifugal separators. IMPERIAL TOBACCO CO. OF CANADA Ltd. Oct. 14, 1964 [Oct. 15, 1963],. No. 40666/63. Headings BIT and B2P. A centrifugal separator, for use at the outlet end of a pneumatic conveying system, comprises a cylindrical casing 6 having a tangential inlet 7 and a solids outlet and rotary air lock 8, 9, 10, both extending the length of casing 6, and an air discharge device comprising at least two annular air discharge ducts 14, 15, extending from respective axially spaced inlets to a common air outlet (16), (Fig. 2, not shown), and having vanes 20, 25 which impose axial flow on air passing through the ducts. In use, outlet (16) is connected to a suction fan. The ducts are formed by coaxial conical and frusto-conical members 17 (19). Vanes 20, 25 may be straight radial (Fig. 7, not shown), or curved and extending beyond their enclosing members (19), 23 to run parallel, adjacent to their leading edges, to the partly circumferential air stream. An eccentrically placed baffle 47 constrains the air to a decreasing spiral motion, most of the solids being lost at wall 55 in the first revolution and all being precipitated before the air enters discharge device 13.
Patent GB-1429382-A (GB)
Title: Method and apparatus for electrophotographic or electrostatic copying
IPC: G03G15/18
Filed: 1973-08-30
Abstract: 1429382 Electrostatographic processes LA CELLOPHANE 30 Aug 1973 [21 Sept 1972] 40941/73 Heading G2H An electrostatic image on a first surface induces a charge image of opposite polarity on a second surface in the nip between two drums where it is simultaneously developed. The first surface may be the surface of a dielectric or photo-conductive drum or belt. As shown, a negatively charged and exposed photo-conductive belt 1 and a web 7 of copy paper are passed between the nip of two rotating drums 5, 6 to bring them into virtual contact while a curtain of a negatively charged liquid developer is fed into the gap between them. The developed, transferred charge image on the paper web 7 is subsequently dried by rollers 14 and fixed by a heater 15. In another embodiment, Fig. 3 (not shown), the charge image is transferred to and developed on the drum 6 per se and the developed image is then transferred to the paper web 7 which in this case is transported around a drum (17) in tangential contact with the drum 6. In a further embodiment, Fig. 4 (not shown), the belt 1 is replaced by a photo-conductive surface on the drum 5, the drum 6 supports a paper web 7 in similar manner to the Fig. 2 embodiment, and both drums 5, 6 are immersed to half their depth in a trough of liquid developer. Although the above embodiments make use of a liquid developer containing toner particles dispersed in an aliphatic hydrocarbon, the use of dry powder or aerosol developers is also envisaged.
Patent GB-1530995-A (GB)
Title: Article and method for covering substrates and composite structures so made
IPC: H01B17/32
Filed: 1975-10-07
Abstract: 1530995 Heat recoverable insulators RAYCHEM Ltd 7 Oct 1975 [8 Oct 1974] 40986/75 Heading H2C [Also in Division B5] A recoverable article 10<SP>1</SP> for covering a substrate 13 comprises an elongate hollow member having at least one open end and at least two sheds each of which extends outwardly from, and is mounted on, a recoverable portion of the member. The sheds are substantially perpendicular to the longitudinal axis of the member in the recoverable condition, when partially recovered, e.g. heat recovered, on a substrate, and also when fully recovered in the absence of a substrate. As described, the article may be used as an insulator, e.g. for providing a component such as a transformer bush, insulator post cable or fuse with a one piece covering. Material, preferably non-tracking material, for the insulator and for adhesive which may be provided between the substrate and the recoverable article are specified. The interior of the hollow article may be grooved so that air can escape when the article shrinks on to the substrate. The recoverable article may be produced by moulding, heating, expanding on a mandrel and then cooling.
Patent GB-1341065-A (GB)
Title: Apparatus for determining and characterizing the slopes of time-varying signals
IPC: G01N30/86
Filed: 1971-09-02
Abstract: 1341065 Measuring slope of electric signals INSTRUMENTATION SPECIALTIES CO. 2 Sept 1971 [17 Nov 1970] 41063/71 Heading G1U The slope of an electric signal is determined by repeatedly sampling and storing the signal and measuring the change between successive sample values. As described a chromatograph signal 10 is applied via a lowpass filter 14, comprising a resistor 24 and a capacitor 16, to a storage capacitor 30 which is successively allowed to charge to the value of the input signal by the repeated closing of a contact 32 under the control of a timing source 38, and each time this occurs the charge necessary to charge the capacitor to the present value of the input flows via a resistor 36 to produce a signal at the output of a non- inverting amplifier 44 representing the amount by which the chromatograph signal has changed since the contact 32 was last closed. The difference signal from amplifier 44 is passed via a four layer diode 46, which functions as a double threshold device, to inverting amplifiers 62, 92, 94 and thence to a logic circuit 110 which produces logic ones (=+5v) or zeros (=0v) on various leads indicating whether the slope is positive, zero (i.e., below the two threshold levels set by the four layer diode), or negative. For example, if a positive slope occurs in the chromatograph signal above the threshold level set by the diode 46, a positive signal is applied to inverting amplifier 62 causing a negative pulse to be applied to a trigger consisting of NAND gate 68, 70, to set the trigger 'on' giving a logic 1 output on a lead 90, thereby indicating the presence of a positive slope. In a similar way, a negative slope sets trigger 96, 98 'on' applying a logic 1 to a lead 100.
Patent GB-1516309-A (GB)
Title: Clamping means for conveyor mechanisms
IPC: B65G21/20
Filed: 1974-09-23
Abstract: 1516309 Cammed levers C W WARD 8 Sept 1975 [23 Sept 1974] 41352/74 Heading E2A [Also in Division B8] Lever 28 is pivoted at one end on rod 30 held by support 26 and bears at its free end a strip 14. Cam 18 is mounted on pivot 20 so that its camming surface can bear on the lever. Wheel 34 is mounted on the same axis 20 and rotates with the cam. Wheel 36 is pivoted eccentrically around rod 38 and falls under its own weight into contact with the wheel 34, jamming it so that the cam cannot be moved away from the lever, only towards it. For Figure see next column
Patent GB-1127745-A (GB)
Title: Improvements in and relating to bimetal-controlled instruments
IPC: H01H37/52
Filed: 1965-09-30
Abstract: 1,127,745. Temperature responsive actuating elements. DANFOSS A/S. Sept. 30, 1965 [Sept. 30, 1964], No.41548/65. Addition to 1,121,834. Heading G1D. [Also in Division H1] A bi-metallic strip for actuating a switch is shaped to provide ambient temperature compensation as in the parent Specification, and its free end 9 is displaced from its fixed end 8 in the direction in which it moves upon heating of the strip by a resistor 10 to actuate the switch. Movement of free end 9 to the left allows contacts 12, 13 to close. The strip is double-hairpin shaped or S-shaped Figs. 5-7 (not shown).
Patent GB-1413146-A (GB)
Title: Cryogenic mandrel expansion
IPC: B21J5/10
Filed: 1972-09-07
Abstract: 1413146 Alloys RAYCHEM CORP 7 Sept 1972 [7 Sept 1971 (2)] 41605/72 Heading C7A [Also in Divisions B3 and C5] "Memory" alloys comprise the following atomic percentages:- The alloys may be used as hollow cylindrical couplings.
Patent GB-1036947-A (GB)
Title: Indicating device for counting and/or calculating apparatus
IPC: G06M1/00
Filed: 1964-10-13
Abstract: 1,036,947. Counting-apparatus. KIENZLE APPARATE G.m.b.H. Oct. 13, 1964 [Oct. 18, 1963], No. 41711/64. Heading G4D. Overthrow in a high-speed counter or register is overcome by a combination of spring and friction means. Rotation of wheel 4 urges braking bow 15 in a clockwise direction to an extent balanced by the tension of spring 17. When the drive ceases the spring 17 and bow 15 return the wheel 4 against whatever play exists in the input drive. A spiral spring in a cylindrical casing (Figs. 3, 4, not shown) may act as spring and brake.
Patent GB-864322-A (GB)
Title: Potentiometer
IPC: H01C10/42
Filed: 1961-01-30
Abstract: 864,322. Variable resistors. DALE ELECTRONIC CORPORATION. Dec. 30, 1958, No. 42012/58. Class 37. A potentiometer comprises a two-part casing, a rod having a resistance winding thereon, and a lead-screw parallel with the resistance winding carrying a wiper contact. The wiper includes a cylindrical portion adapted to surround the leadscrew and has an integral loop for maintaining spring pressure. As shown, a potentiometer has a two-part casing 10, 12 held together by rivets 50. The part 10 of the casing carries a conductive former for the resistance winding 16 which is located in a casing by V-shaped indentations 18. One end of the wire is soldered to the rod at 14 and the other end of the rod is connected to the terminal 20, the other end of the wire being connected direct to the terminal 22. A lead-screw 26 is mounted parallel to the element and is located at one end by a cylindrical portion 34 and at the other end by a larger cylindrical portion 28 to which is attached an insulated head 32 having a screwdriver slot. In order to protect this head it may be encased in a metal cylinder 33. The rod is held in place by a crimped washer 27 and the end of it remote from the head 32 is connected to a further terminal 24. These terminals may be of, for example, beryllium copper. The wiper arm 40 has a cylindrical portion 42 formed round the lead-screw with an indentation 44 which engages the thread. A loop 46 engages with the ledge 54 to ensure a proper contact with the element. A channel 52 is provided from one of the rivet holes into the interior of the casing in order that the casing may be filled with a silicone grease before inserting the rivet. Fixing holes 62 are provided for mounting the completed unit and identification slots 64 having coloured fillings and numbers 66 may also be provided to enable the terminals to be identified. In order to minimise the effects of temperature variations on the potentiometer the core of the resistive winding, the lead-screw and the wiper arm may all be made from the same material.
Patent GB-1344682-A (GB)
Title: Process for producing dl/tryptophane
IPC: C07D209/20
Filed: 1971-09-09
Abstract: 1344682 DL-Tryptophan VYZKUMNY USTAV ORGANICKYCH SYNTEZ 9 Sept 1971 [25 Sept 1970] 42092/71 Heading C2C DL-Tryptophan is produced in pure form by reacting a DL-acyltryptophan or crude DL- tryptophan with a 30-60% w/w alkali metal hydroxide solution at 110-140‹ C. to produce a solid alkali metal tryptophanate, dissolving this in a solvent, e.g. water, and treating the resulting solution with an acid. The acyltryptophan may be obtained, by reacting acrolein with a dialkyl acylamidomalonate in the presence of a basic catalyst, and cyclizing the product by reaction with phenylhydrazine.